=========================================================================Ubuntu Security Notice USN-4263-2
February 05, 2020

sudo vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

Sudo could allow unintended access to the administrator account.

Software Description:
- sudo: Provide limited super user privileges to specific users
Details:

USN-4263-1 fixed a vulnerability in Sudo. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

 Joe Vennix discovered that Sudo incorrectly handled memory operations when
 the pwfeedback option is enabled. A local attacker could possibly use this
 issue to obtain unintended access to the administrator account.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 ESM:
  sudo                            1.8.9p5-1ubuntu1.5+esm3
  sudo-ldap                       1.8.9p5-1ubuntu1.5+esm3

Ubuntu 12.04 ESM:
  sudo                            1.8.3p1-1ubuntu3.9
  sudo-ldap                       1.8.3p1-1ubuntu3.9

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-4263-2
  https://ubuntu.com/security/notices/USN-4263-1
  CVE-2019-18634

Ubuntu 4263-2: Sudo vulnerability

February 5, 2020
Sudo could allow unintended access to the administrator account.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM: sudo 1.8.9p5-1ubuntu1.5+esm3 sudo-ldap 1.8.9p5-1ubuntu1.5+esm3 Ubuntu 12.04 ESM: sudo 1.8.3p1-1ubuntu3.9 sudo-ldap 1.8.3p1-1ubuntu3.9 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4263-2

https://ubuntu.com/security/notices/USN-4263-1

CVE-2019-18634

Severity
February 05, 2020

Package Information

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